Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751203AbaDXEGh (ORCPT ); Thu, 24 Apr 2014 00:06:37 -0400 Received: from mail-ee0-f43.google.com ([74.125.83.43]:33511 "EHLO mail-ee0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750935AbaDXEGf (ORCPT ); Thu, 24 Apr 2014 00:06:35 -0400 Message-ID: <1398312391.5415.16.camel@marge.simpson.net> Subject: Re: [ANNOUNCE] 3.14-rt1 From: Mike Galbraith To: Sebastian Andrzej Siewior Cc: linux-rt-users , LKML , Thomas Gleixner , rostedt@goodmis.org, John Kacur Date: Thu, 24 Apr 2014 06:06:31 +0200 In-Reply-To: <20140411185739.GA6644@linutronix.de> References: <20140411185739.GA6644@linutronix.de> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Turning lockdep on, it says it's busted. (I'll go stare at it, maybe the beast will blink first for a change) [ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.000000] ... MAX_LOCK_DEPTH: 48 [ 0.000000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.000000] ... CLASSHASH_SIZE: 4096 [ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384 [ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768 [ 0.000000] ... CHAINHASH_SIZE: 16384 [ 0.000000] memory used by lock dependency info: 6367 kB [ 0.000000] per task-struct memory footprint: 2688 bytes [ 0.000000] ------------------------ [ 0.000000] | Locking API testsuite: [ 0.000000] ---------------------------------------------------------------------------- [ 0.000000] | spin |wlock |rlock |mutex | wsem | rsem | [ 0.000000] -------------------------------------------------------------------------- [ 0.000000] A-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0xdf/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-B-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x16e/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-B-C-C-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x1fd/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-C-A-B-C deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x28c/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-B-C-C-D-D-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x31b/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-C-D-B-D-D-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x3aa/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] A-B-C-D-B-C-D-A deadlock: ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x439/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok | ok | [ 0.000000] double unlock: ok | [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/sched/core.c:2660 migrate_disable+0xbd/0xd0() [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000a64 ffffffff81a01d38 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000000 ffffffff81a01d78 ffffffff8104f0cc ffffffff81a01d78 [ 0.000000] ffffffff81a194c0 0000000000000027 0000000000000006 0000000000000001 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] warn_slowpath_common+0x8c/0xc0 [ 0.000000] [] warn_slowpath_null+0x1a/0x20 [ 0.000000] [] migrate_disable+0xbd/0xd0 [ 0.000000] [] call_console_drivers.constprop.20+0x4f/0x140 [ 0.000000] [] console_unlock.part.15+0x1df/0x2e0 [ 0.000000] [] ? _raw_spin_unlock+0x35/0x60 [ 0.000000] [] console_unlock+0x18/0x30 [ 0.000000] [] vprintk_emit+0x231/0x400 [ 0.000000] [] ? preempt_schedule+0x4a/0x70 [ 0.000000] [] ? bad_unlock_order_spin+0x40/0x40 [ 0.000000] [] printk+0x4d/0x4f [ 0.000000] [] ? preempt_count_sub+0x29/0x70 [ 0.000000] [] ? double_unlock_spin+0x28/0x30 [ 0.000000] [] dotest+0x75/0xc7 [ 0.000000] [] locking_selftest+0x49f/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ---[ end trace 0000000000000001 ]--- [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/sched/core.c:2693 migrate_enable+0xf6/0x1a0() [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000a85 ffffffff81a01cb8 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000000 ffffffff81a01cf8 ffffffff8104f0cc ffffffff81a01d18 [ 0.000000] ffffffff81a194c0 0000000000000000 000000000000000a ffffffff8275f367 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] warn_slowpath_common+0x8c/0xc0 [ 0.000000] [] warn_slowpath_null+0x1a/0x20 [ 0.000000] [] migrate_enable+0xf6/0x1a0 [ 0.000000] [] vt_console_print+0x2f1/0x3d0 [ 0.000000] [] call_console_drivers.constprop.20+0xb7/0x140 [ 0.000000] [] console_unlock.part.15+0x1df/0x2e0 [ 0.000000] [] ? _raw_spin_unlock+0x35/0x60 [ 0.000000] [] console_unlock+0x18/0x30 [ 0.000000] [] vprintk_emit+0x231/0x400 [ 0.000000] [] ? preempt_schedule+0x4a/0x70 [ 0.000000] [] ? bad_unlock_order_spin+0x40/0x40 [ 0.000000] [] printk+0x4d/0x4f [ 0.000000] [] ? preempt_count_sub+0x29/0x70 [ 0.000000] [] ? double_unlock_spin+0x28/0x30 [ 0.000000] [] dotest+0x75/0xc7 [ 0.000000] [] locking_selftest+0x49f/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ---[ end trace 0000000000000002 ]--- [ 0.000000] ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 0000000000000046 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x4c5/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] ok | ok |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000008 ffffffff81a01f28 ffffffff815e12a5 0000000000000046 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x4fe/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] [ 0.000000] initialize held: ok | ok | ok | ok | ok | ok | [ 0.000000] bad unlock order: ok | ok | ok | ok | ok | ok | [ 0.000000] -------------------------------------------------------------------------- [ 0.000000] recursive read-lock: | ok | |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000008 ffffffff81a01f28 ffffffff815e12a5 0000000000000006 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x695/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] [ 0.000000] recursive read-lock #2: |FAILED| [ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.14.1-rt1 #16 [ 0.000000] Hardware name: MEDIONPC MS-7502/MS-7502, BIOS 6.00 PG 12/26/2007 [ 0.000000] 0000000000000002 ffffffff81a01f28 ffffffff815e12a5 ffffffff810b7727 [ 0.000000] 0000000000000001 ffffffff81a01f58 ffffffff815e1db2 0000000000000000 [ 0.000000] 0000000000000000 0000000000000000 0000000000000000 ffffffff81a01f68 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0x4f/0x7c [ 0.000000] [] ? console_trylock_for_printk+0x37/0xf0 [ 0.000000] [] dotest+0x5f/0xc7 [ 0.000000] [] locking_selftest+0x6d3/0xb30 [ 0.000000] [] start_kernel+0x215/0x327 [ 0.000000] [] ? repair_env_string+0x5a/0x5a [ 0.000000] [] ? memblock_reserve+0x49/0x4e [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0xf0/0xf7 [ 0.000000] | ok | [ 0.000000] mixed read-write-lock: | ok | | ok | [ 0.000000] mixed write-read-lock: | ok | | ok | [ 0.000000] -------------------------------------------------------------------------- [ 0.000000] hard-irqs-on + irq-safe-A/12: ok | [ 0.000000] hard-irqs-on + irq-safe-A/21: ok | [ 0.000000] hard-safe-A + irqs-on/12: ok | [ 0.000000] hard-safe-A + irqs-on/21: ok | [ 0.000000] hard-safe-A + unsafe-B #1/123: ok | [ 0.000000] hard-safe-A + unsafe-B #1/132: ok | [ 0.000000] hard-safe-A + unsafe-B #1/213: ok | [ 0.000000] hard-safe-A + unsafe-B #1/231: ok | [ 0.000000] hard-safe-A + unsafe-B #1/312: ok | [ 0.000000] hard-safe-A + unsafe-B #1/321: ok | [ 0.000000] hard-safe-A + unsafe-B #2/123: ok | [ 0.000000] hard-safe-A + unsafe-B #2/132: ok | [ 0.000000] hard-safe-A + unsafe-B #2/213: ok | [ 0.000000] hard-safe-A + unsafe-B #2/231: ok | [ 0.000000] hard-safe-A + unsafe-B #2/312: ok | [ 0.000000] hard-safe-A + unsafe-B #2/321: ok | [ 0.000000] -------------------------------------------------------------------------- [ 0.000000] | Wound/wait tests | [ 0.000000] --------------------- [ 0.000000] ww api failures: ok | ok | ok | [ 0.000000] ww contexts mixing: ok | ok | [ 0.000000] finishing ww context: ok | ok | ok | ok | [ 0.000000] locking mismatches: ok | ok | ok | [ 0.000000] EDEADLK handling: ok | ok | ok | ok | ok | ok | ok | ok | ok | ok | [ 0.000000] spinlock nest unlocked: ok | [ 0.000000] ----------------------------------------------------- [ 0.000000] |block | try |context| [ 0.000000] ----------------------------------------------------- [ 0.000000] context: ok | ok | ok | [ 0.000000] try: ok | ok | ok | [ 0.000000] block: ok | ok | ok | [ 0.000000] spinlock: ok | ok | ok | [ 0.000000] ----------------------------------------------------------------- [ 0.000000] BUG: 11 unexpected failures (out of 119) - debugging disabled! | [ 0.000000] ----------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/